1. សេចក្តីផ្តើម
The Douk Audio Nobsound Little Bear MC103 is a passive XLR balanced stereo audio switcher designed to manage multiple audio sources or destinations. This device allows users to select between three input sources to one output, or one input source to three output destinations, providing flexibility in audio system configurations without requiring external power.
2. ផលិតផលលើសview
The MC103 features a robust metal casing and high-quality XLR connectors, ensuring signal integrity and durability. Its passive design means no power supply is needed, simplifying setup and reducing potential noise interference.
2.1 លក្ខណៈសំខាន់ៗ
- 3-IN-1-OUT or 1-IN-3-OUT Functionality: Versatile for various audio setups.
- XLR Balanced Connections: Ensures high-fidelity audio transmission and minimizes noise.
- Passive Design: មិនត្រូវការថាមពលខាងក្រៅទេ។
- បង្រួម និងធន់៖ Solid construction for long-term reliability.
2.2 សមាសធាតុ
The device consists of a main unit with front and rear panels. The front panel includes the selector knob and input/output indicators, while the rear panel houses the XLR input and output ports.

រូបភាពទី 1៖ ខាងមុខ view of the Little Bear MC103 XLR switcher, showing the selector knob and XLR ports.

រូបភាពទី 2៖ ខាងក្រោយ view of the Little Bear MC103, illustrating the labeled IN and OUT XLR ports for left (L) and right (R) channels.
3. ការណែនាំអំពីការដំឡើង
Follow these steps to set up your Little Bear MC103 audio switcher:
- ទីតាំង៖ Place the MC103 on a stable, flat surface near your audio equipment. Ensure adequate ventilation and avoid placing it near strong electromagnetic fields.
- ខ្សែ៖ Use high-quality XLR balanced cables for all connections.
- របៀបតភ្ជាប់៖
- 3-IN-1-OUT Mode: Connect up to three audio sources (e.g., DACs, preamps) to the 'IN' ports (labeled 1, 2, 3). Connect your single audio destination (e.g., amplifier, active speakers) to the 'OUT' port.
- 1-IN-3-OUT Mode: Connect your single audio source (e.g., DAC) to the 'IN' port. Connect up to three audio destinations (e.g., multiple amplifiers, active speakers) to the 'OUT' ports (labeled 1, 2, 3). Note: In this mode, you may need XLR gender changers if your cables are not compatible with the 'OUT' ports acting as inputs.
- ថាមពល៖ As a passive device, the MC103 does not require external power.

រូបភាពទី 3៖ Connection diagrams illustrating both 3-IN-1-OUT and 1-IN-3-OUT configurations for the MC103 switcher.
4. សេចក្តីណែនាំប្រតិបត្តិការ
Operating the Little Bear MC103 is straightforward:
- Select Source/Destination: Rotate the selector knob on the front panel to choose the desired input (in 3-IN-1-OUT mode) or output (in 1-IN-3-OUT mode). The knob will click into position for each selection (1, 2, or 3).
- ការចាក់សារថ្មី៖ Once a selection is made, audio will pass through the selected path. Ensure your audio sources are playing and your audio destinations are powered on and set to the correct input.
5. លក្ខណៈបច្ចេកទេស
| លក្ខណៈ | ការបញ្ជាក់ |
|---|---|
| គំរូ | MC103 |
| វិមាត្រ (L x W x H) | 155mm x 60mm x 50mm |
| ទម្ងន់ | 160 ក្រាម។ |
| ប្រភេទឧបករណ៍ភ្ជាប់ | XLR មានតុល្យភាព |
| មុខងារ | 3-IN-1-OUT or 1-IN-3-OUT Audio Switcher |
| ការផ្គត់ផ្គង់ថាមពល | Passive (No external power required) |
| ភាពឆបគ្នា។ | Devices with XLR audio connections (e.g., PCs, DACs, Ampអ្នករស់រានមានជីវិត) |

រូបភាពទី 4៖ Physical dimensions of the Little Bear MC103 switcher.
6. ការដោះស្រាយបញ្ហា
ប្រសិនបើអ្នកជួបប្រទះបញ្ហា សូមមើលការណែនាំដោះស្រាយបញ្ហាខាងក្រោម៖
- គ្មានសំឡេង៖
- Ensure all XLR cables are securely connected to both the MC103 and your audio equipment.
- Verify that the selector knob is fully engaged on the desired input/output.
- Check that your audio sources are playing and your audio destinations (amplifiers, speakers) are powered on and set to the correct input.
- Humming or Noise:
- Ensure you are using balanced XLR cables. Unbalanced cables can introduce noise.
- Check for proper grounding of all connected audio equipment.
- Move the switcher away from power cables or other electronic devices that might cause interference.
- Signal Bleed Between Channels:
- Ensure the selector knob is firmly clicked into position for the chosen channel.
- Verify the integrity of your XLR cables; damaged cables can cause signal leakage.
7. ការថែទាំ
To ensure the longevity and optimal performance of your Little Bear MC103:
- ការសម្អាត៖ Use a soft, dry cloth to clean the exterior of the unit. Avoid using liquid cleaners or solvents.
- ការផ្ទុក៖ ទុកឧបករណ៍ក្នុងកន្លែងត្រជាក់ និងស្ងួតឆ្ងាយពីពន្លឺព្រះអាទិត្យដោយផ្ទាល់ និងសីតុណ្ហភាពខ្លាំង នៅពេលមិនប្រើ។
- ការគ្រប់គ្រង៖ Handle the unit with care to prevent physical damage to the casing or connectors.
8. ការធានា និងការគាំទ្រ
For warranty information or technical support, please refer to the Douk Audio official webឬទាក់ទងអ្នកចែកចាយដែលមានការអនុញ្ញាតរបស់អ្នក។ សូមរក្សាទុកបង្កាន់ដៃទិញរបស់អ្នកសម្រាប់ការទាមទារការធានា។





